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(11)

EP 4 208 996 A1

(12)

(43) Date of publication: 12.07.2023 Bulletin 2023/28 (21) Application number: 20951941.2 (22) Date of filing: 03.09.2020

(51) International Patent Classification (IPC):  H04L 65/1104(2022.01) (52) Cooperative Patent Classification (CPC): H04L 1/08; H04W 74/0808; H04L 5/0044; H04L 5/001 (86) International application number: PCT/CN2020/113212 (87) International publication number: WO 2022/047694 (10.03.2022 Gazette 2022/10)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicant: QUALCOMM INCORPORATED San Diego, California 92121-1714 (US)

(72) Inventors: GUO, Shaozhen San Diego, California 92121-1714 (US) ZHANG, Xiaoxia San Diego, California 92121-1714 (US) XU, Changlong San Diego, California 92121-1714 (US) SUN, Jing San Diego, California 92121-1714 (US) XU, Hao San Diego, California 92121-1714 (US) (74) Representative: Loveless, Ian Mark  Reddie & Grose LLP The White Chapel Building 10 Whitechapel High Street London E1 8QS London E1 8QS (GB)